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APRS station W4SDM-9 - show graphs
Comment: Mobile - Beige FJ
Mic-E message: Custom 0
Location: 38°50.50' N 77°21.29' W - locator FM18HU72KA - show map
4.2 km West bearing 263° from Fairfax, City of Fairfax, Virginia, United States [?]
9.0 km Northwest bearing 307° from Burke, Fairfax County, Virginia, United States
28.2 km West bearing 258° from Washington, D. C., Washington, D.C., United States
81.2 km Southwest bearing 232° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-03-11 20:26:22 UTC (2d 3h38m ago)
2025-03-11 16:26:22 EDT local time at Fairfax, United States [?]
Course: 44°
Speed: 0 km/h
Device: Kenwood: TH-D72 (ht)
Last path: W4SDM-9>DIFP5P via N4CV-2*,WIDE1*,WIDE2-1,qAR,WC4J (good)
Positions stored: 23431
Other SSIDs: W4SDM
Stations which heard W4SDM-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
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